Automatic feed for presses and the like.



B. S. REDD.

AUTOMATIC FEED POE. PRESSES AND THE LIKE.

APPLIOATION FILED MAY 18, 1911.

Llg figfio Patented Jan.5, 1915.

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THE NORRIS PETERS CO. FHOTO-LITHO.. WASHINGTON, n. c

B. S. REDD.

AUTOMATIC FEED FOR PRBSSES AND THE LIKE.

APPLICATION FILED MAY18,1911.

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TJ'FTTTE PATENT FFTQE.

BENOIST S. REDID, IOF NEW YORK, N. Y., ASSIGNOR TO B. HOE AND (10., OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

AUTOMATIC FEED FOR PRESSES AND THE LIKE.

Specification of Letters Patent.

Patented Jan. 5, 1915.

Application filed ma 18, 1911, Serial no. 628,024.

To all whom it may concern Be it known that I, BENOIST S. REDD, a citizen of the United States, residing at New York. county of New York, and State of New York. have invented certain new and useful Improvements in Automatic Feeds for Presses and the like, fully de scribed and represented in the following specification and the accompanying drawings. forming a part of the same.

.This invention relates to improvements in automatic feeds for presses and the like.

In presses employing automatic feeds, and more particularly in those employed in connection with electrotype work, it is desirable that the feeding devices be not only rapid in operation but that they should start and complete their movement easily and without shock or jar. It will be understood that in presses used in electrotvpe work, the forms and wax cases are placed in contact and the two then fed into the press. It the feeding' movement starts or finishes the feeding operation abruptly, the relative position of the form and wax case is liable to be changed and any slight shift between these parts may scratch or mar the surface of the wax and thus interfere with obtaining a proper impression.

The present invention has for its object to produce an improved feedin mechanism for presses and the like which is compact, cheap in construction and simple in operation. and in which an easy stopping and starting of the feeding mechanism is obtained.

\Vith this and other objects not specifically referred to in view, the invention consists in certain constructions, and in certain parts, improvements and combinations as will be hereinafter fully described and then specifically pointed out.

Referring to the accom anying drawings: Figure 1 is a plan view of a feeding mechanism embodying the invention, the press platen being indicated in this figure. Fig. 2 is a view similar to Fig. 1 but showing the parts in a different position. Fig. 3 is a front elevation of the construction shown in Fig. 1. Fig. 4 is a side elevation, partly in section. of the construction shown in Fig. 1. Fi s. 5 and 6 are detail views.

Referring to the drawings which illustrate one embodiment of the invention, 1 indicates a press platen upon which the work is fed, this platen being operated in any suitable way, as. for instance, by hydraulic mechanism. The press head will be carried on uprights 2, as usual in such constructions.

Mechanisms embodying the invention will include a carrier on which the work is placed, which carrier may be of any suitable construction. As shown, this carrier consists of a plate 3 sliding on ways 4 supported on arms or brackets 5 extending from the press platen. One of these brackets may support a pocket or trough 5 which is used to contain tools, or for other similar purposes. T he operating devices by which the carrier is moved onto and off the press platen will include a crank which may be mounted and operated in various ways. In the particular construction illustrated. this crank (marked 6) is carried on a vertical shaft 7 mounted in a bearing 8 formed in a web or brace 9 extending across between the arms 5. This shaft carries at its lower end a gear 10.

The power transmitting connections be tween the crank and the carrier may be varied in form, but in the best constructions will be so arranged as to engage the carrier centrally between the ways or guides on which it moves. as by this construction the strains developed in the o eration of moving the carrier will be equally distributed and any tendency of the carrier to bind in its hearings will be overcome. In the particular construction illustrated. the power transmitting connections include a floating lever 11 pivoted at 12 to the underside of the carrier. As shown. this lever is also pivoted to the crank at 13. this pivotal point being substantially midwa between the ends of the lever. Where the power transmitting connections are of the type describedmeans should be provided for controlling the floating lever. In the particular construction illustrated, the fl ating lever is controlled by a two-part controlling guide. the two parts of the guide lying on o posite sides of the shaft 7. As shown, this two-part guide consists of slotted brackets 14 which may be cast on the arms 5. The end of the lever upon which this controlling guide operates is provided with a roller 15.

Referring to the construction so far described. and assuming that the parts are in the position shown in Fig. 1. and that the gear 10 is rotated in the direction of the lllt) on the "web 9 before referred to.

the guide member with which it is engaged and back again and will be occupying a position between the two members of the guide. At this time, also,'the pivctal'point 12 will occupy a position correspondingto that shown in Fig. 1, but will be between the shaft 7 and the press platen, or, in other words, the carrier will have completed its inward feeding movement. If now, the rotation of the crank be resumed, the roller '16 will pass intotheother' member of the twopart guide and the travel of the carrier will 'be resumed in the opposite-direction, this travel continuing until the crank haseompl'eted another half revolution.

The means for operating the gear 10, when a gear its-employed for'operatingthe crank, may be varied. In the'particular construction-shown, this gear 10'is aworm gear and is arranged to be engagedby a worm 16 on a'worm shaft 17, this shaft being supported in abearing 18 formed in a link 19 and'ina bearing 20 formed on a bracket 21. The link 19 is supported by' a pivot 22 extending from an-ear 23 formed The bracket 21' is swiveled on-a verti'cal pivot 2 l'passingthrough "abearing in a bracket 25 secured tothepl aten 1 The" outer end of the shaft is formed to provide a handle '26 and it is apparentthat'by grasping the handle the'op'e'rator may move "the shaft so as tofbring the worm 16 into or out of 'engagement with the worm gear 10. The worm shaft l'l', when th is-form of driving mechanism isemployedg'may be operated by any 's-uitaib'le'mec'hanism. In the particular 60':

construction shown, theshaft is provided with a"sp'roc'ket 27 driven by-a chain '28 passing around a sprocket'29on a driven shaft 30-supportedon the {frame of the press.

In the'best constructions embodying the invention means will be provided for automatically' throwing out the 1 driving mechanism for the crank at the end of the'feeding stroke of the carrier which, in the best constructions, will be after the crank has made a half revolution. iVhile'these' meansjm-ay be "varied, in the "particular construction illustrated the link 1 9ha's pivoted toit at 31 a latch 32, thislatchbeing ar'i'ranged to takeover a pin "38 extei iding' frem the web 9. The outer end of the latch is provided with a roll 3% arranged to be struck by cams 35 arranged opposite each other on the worm gear 10. The latch 82 has a short arm 36 extending below its pivot and to this arm is connected a spring 37 which is also connected to the web 9. As the operator swings the worm into engagement with the worm gear, the latch 32 engages the pin 33 and holds the worm gear and worm in engagement until the worm wheel has made-a half revolution at which time the roll 34 is struck by one of the cams and the latch is disengaged from the pin. As soon as the latch is disengaged from the pin the spring 37 swings the link 19 over, thus moving the worm out of engagement with the worm wheel.

It will be seen that the feeding device which has been described is simple and-certain in operation, is compact 'and' cheap in construction, and that by reason of the crank mechanism and connections, the starting and stopping of the carrier is effected very easily. Furthermore, inasmuch as the pOWGl' tlllSllllttlllg COllllQOtlOllS '{tlWllyS operatecentrally of the carriage, thereis no tendency of the carriage tobind in itsbearings and the strains on the mechanism are evenly distributed.

Changes and variations maybe made in the construction by which the invention claimed is carried into effect. The invention claimed, therefore, is not to be confined to the particular construction herein described and illustrated in the accompanying drawings.

What is claimed is 1. In a feeding device for presses andthe like the combination with a carrier, of guides therefor, a crank, power transmitting connections between the crank and the carrier, said connect-ions engaging the carrier centrally between the guides, means for rotating the crank, and means for automatically stopping the rotation of the crank atthe end of the feeding movement.

. 2. In a feeding device for presses andthe like, the combination with a carrier, of guides therefor, a crank, means for rotating the crank always in the same direction, power transmitting connections between'the crank and the carrier, said connections engaging the carrier centrally between its guides, and means for automatically stopping the rotation of the crank at the end of each half revolution.

3. In a feeding device for presses "and the like, the combination with a carrier, of guides therefor, a crank, means for rotating the'crank always in the same direction, an actuating lever betweenth-e crank and the carrier, and means for stopping the rotation of the crank at the endof: thefeeding stroke of the lever.

5. In a feeding device for presses and the like, the combination with a carrier, of guides therefor, a crank, means for driving the crank always in the same direction,a

floating actuating lever between the crank and the carrier, said lever having a fixed fulcrum on the carrier, and a two-pantomitrolling guide for the lever, the parts of the guide lying on opposite sides of the center of rotation of the crank.

6. In a feeding device for presses and the like, the combination with a carrier, of guides therefor, a crank, means for driving the crank always in the same direction, a floating actuating lever between the crank and the carrier, said lever being attached to the carrier centrally between the guides, and a two-part controlling guide for the lever, the parts of the guide lying on opposite sides of the center of rotation of the crank. e

7. In a feeding device for presses and Copier the like, the combination with a carrier, of guides therefor, a crank, means for rotating the crank always in the same direction, a

floating actuating lever between the crank and the carrier, said lever being attached to the carrier centrally between the guides, a

two-part slotted controlling guide for the lever, the parts of said guide lying on opposite sides of the center of rotation of the crank, and means for automatically stopping the rotation of the crank at the end of each half revolution.

8. In a feeding device for presses and the like, the combination with a carrier, of guides therefor, a crank, a worm wheel for actuating the crank, a movable worm for driving the wheel in the same direction, a

floating actuating lever between the crank andthe carrier, a two-part controlling guide for the actuating lever, and means controlled by the worm wheel for automatically disengaging the worm when the crank has made a half revolution.

In testimony whereof, I have hereunto set my hand, in the presence of two subscribing witnesses.

BENOIST S. REDD. Witnesses:

RICHARD KELLY, GEORGE H. OREIGHTON.

of this patent may be obtained for five cents each. by addressing the Commissioner of Patents,

Washington, D. C," 

